How can the drill pipe cracking of rotary drilling rig be welded?
Tell you, you remember, it's a friction welded joint! If it is not friction welding, it is deceptive. Because the oil drill pipe is friction welded. There is a welding and cutting equipment company in Harbin. I used to work as a technician there. Can help you with this problem.
Or very good welding, and see what the substrate material. The shaft fracture can be welded. Tianjin source welding can be consulted.
Must use two treasure welding! The welder is not as strong as the ordinary welder! And ensure smooth formation, so as not to put the rope when the power head of the inner key to cause unnecessary wear and tear, and even accidents, but also pay attention to cracking, serious, serious, to return to the factory, do not force yourself
